QSI Laser DiodeLG UVLEDLG White LED English中文    Nov 28,2025
Is the performance of QSI laser diode stable? What are the advantages compared with domestic ones? {Longstar Technology}
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What are the uses of 650nm laser diode?
   25.11.2025    Source:http://www.longstartech.com.cn/

We all know that 650nm laser diode is widely used in the current market, so do you know where this laser product is mainly used? Let's take a look at it together.

Positioning, aiming and indicating equipment

This application is particularly versatile, such as: laser levels, alignment point of infrared thermal imager, and industrial positioning spot.

Why choose 650nm? The first one can be seen by naked eyes, the second one has obvious brightness, and the third one has low cost.

Bar code scanning and visual recognition

The early supermarket barcode scanner, the red light in the scanning window, is the 650nm laser.

Later, although CMOS camera recognition began to replace laser scanning, many scanning guns in warehousing, logistics and industry still used laser scanning.

Medical rehabilitation and biological application

650nm, the red light energy penetrates deep into skin tissue, so some medical devices will use it, such as:

Low-dose laser therapeutic instrument, red light irradiation rehabilitation physiotherapy, auxiliary equipment for skin tissue repair, acupoint physiotherapy instrument.

Industrial control class

In some precision machining equipment, 650nm laser is also used as the light source for workpiece positioning, cutting trajectory indication, marking preview position indication and SMT mounter auxiliary alignment.

650nm laser diode is the most widely used band in visible light laser, which is cheap, reliable, controllable in brightness and visible to human eyes. It can be used in various scenes such as measurement, positioning, medical treatment, consumer entertainment, industrial indication and so on.


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